Separable fastening for sectional pipes.



K. J. THORS BY.

SEPARABLE FASTENING FOB. SEGTIONAL PIPES. APPLICATION FILED AUG. 31,1912.

1,050,871 Patented Ja1 1.21, 1913.

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' glam 2 mam INVENTOR XIII ATTORNEY KARL JOHAN THORSBY, OF OAKLAND,RUGA'IED CULVERT COMIBANY, OF CALIFORNIA.

CALIFORNIA, ASSIGNOR TO CALIFORNIA COR" OAKLAND, CALIFORNIA, ACORPORATION OF SEPARABLE FASTENING FOR SECTIONAL PIPES.

Specification of Letters Patent.

Patented Jan. 21, 1913.

Application filed August 31, 1912. Serial No.'718 136.

which are usually composed of two semlcircular sections provided withinterengaging edges and with fastenings for holding the sectionstogetherwhen assembled in the completed pipe In nesting and shippingknock-down pipe 7 sections with fastening lugs initially in'sepa rablysecured to them,

said lugs are subject to injury and destruction from various causes,which are difficult to prevent, especially on large size pipe sections.Furthermore, separability of such fastenings there is loss of space intransportation, which is especially disadvantageous in steamershipments.

My invention is intended to overcome both these difiiculties, and tothis end my said invention consists essentially in a separable fastenlngfor the pipe-sections, adapt;-,

ed to be packed and to be shipped separately and to be readily appliedto the sections in assembling them at the work or place of installation,and it consists particularly in'the novel fastening which I shall nowfully describe by reference to the accompanylng drawings, in which-Figure 1 is a cross sectional view of a pipe on the linew-m of Fig. 2showing my fastening applied to the assembled sections of the pipe. Fig.2 is a side view of the same. Fig. 3 is a plan View, enlarged, of thefastening alone, the members of which are shown assembled. Fig. 4 is afront elevation of the same. Fig. 5 is a side elevation of the same.

Referring first to Figs; 3, 4-. and 5, 1 is the lug-member, which inthis case is made from a rod of circular section. This lugsnugly insideas is usually done,

by reason of the in-.

member at one end is formed with an eye 8 bent at an angle 5 to its bodyportion which angle is determined, as will be fully appreciated when thecomplete fastening is disclosed, by the diameter of the pipe with ,whichit is to be used. The body of the lug which to avoid confusion has thenumeral 1 applied to it, is carried straight from the angle bend 5 ofthe eye 8 to the point indicated by 3, where it is again bent or offsetto form the engaging end 6. The amount of the offset or bend at 8, asindicated at 4, in Fig. 5 is determined by the thickness of the metalfrom which the pipe to which the lug-member 1 is to be applied isformed, and is approximately equal to said thick ness, so that theengaging end 6 will lie the pipe and the body 1 will lie outside thepipe with a snug fit, as is shown in Fig. 1.

2 is a bolt member of the fastening. One end of this member is threadedto receive a nut 77, while the other extremity is bent at an angle 9(which, in practice, should be less than a right angle) to form engagingend 10.

In Figs. 1 and2 I show a pipe 11 which is here illustrated as acorrugated metal pipe, though it is to be understood that I do notconfine myself to this type or form of pipe, as my fastening is asreadily applicable to other types or forms as to this. The pipe 11 ismade in semi-circular sections, an upper and a lower section, adaptedfor nesting in transportation; and I have indicated at 12 'certainlnterengaging tongues by which the edges of the two sections fittogether.

In the upper section on each side above its edges are made holes 13, andin the lower section on each side below its edges are made holes 14.

In shipping the pipe the sections are nested without their fastenings,the latter being packed separately. At the work, when the sections areassembled, the lug-member 1 has its engaging end 6 inserted'in the hole14 of the lower pipe section. The bolt member 2 is passed down throughthe eye -8 of the lug-member 1, and its engaging end 10 is fitted in thethe threaded end of the bolt member 2, the engaging ends 6 and 10 of thefastening members, crampin in their respective holes in the line ofstrain, will result in drawing hole 13 of the upper pipe section. Thenupon tightening up the nut 7 on hole in their respective pipe-sectionsand to -in the line of the cramp therein in the line of the fasteningstrain, and means for securing together the nearer ends of the twomembers.

2. A separable fastening instrumentality for sectional pipes, comprisingtwo members having their farther ends bent to enter a hole in theirrespective pipe-sections and to cramp therein in the line of thefastening strain, and means for adjustably' securing together the nearerends of the two members.

3. A separable fastening instrumcntality for sectional pipes, comprisinga lug-member and a bolt member each having its farther end bent to entera hole in its corre sponding pipe-section and tocramp therein fasteningstrain, said lugmember having an eye on its other end and said boltmember having its other end threaded and passing through the eye of thelug-member, and a nut on the threaded end of the bolt-member bearingupon the eye to secure and tighten the two members together.

4. A separable fastening instrumentality for sectional pipes, comprisinga lug-member having one end adapted to enter a hole in one of the pipesections, said end being offset from the body of the lug-member by a forsecuring and tightening togetherthe ad jacent ends of the two members.

A separable fastening instrumentality for sectional pipes, comprising alug-member having one end formed with an eye, and its other end adaptedto enter a hole in one of the pipe sections, said end being offset fromits body by a. distance equal to the thickness of the material of whichthe pipe section is composed, whereby said offset end may lie againstthe inner surface of the pipe section and cramp in the hole thereof inthe line of the fastening strain; a bolt member having one end threadedand passing through the eye of the lug-member, and having its other endbent to enter andto cramp within a hole in the other pipe-section; and anut on the threaded end of the bolt member bearing upon the eye of thelug-member to secure and tighten the two members together.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

KARL JOHAN THORSBY.

Witnesses:

FRANs. S. GAINES, S. A. Fo

